A Pressure Meter are testing devices used in performing output measurement tests and performance verification on Ophthalmology lasers, dialysis machines, automatic tourniquets, drainage devices, IV pumps, diagnostic and surgical suction devices, ventilators, and pressure gauges equipment. Mostly, these multifaceted devices performs primary measurement of gas or liquid pressures Measurement (in mmhg or cmH2O) as well as several additional tests. Lastly, technicians can store, print data, or possibly transfer it to an automated computerized maintainence management system for archival.